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12681148 = 223170287
BaseRepresentation
bin110000010111…
…111110111100
3212212021021011
4300113332330
511221244043
61131445004
7212534164
oct60277674
925767234
1012681148
117181597
1242b6764
13282004c
1419815a4
1511a759d
hexc17fbc

12681148 has 6 divisors (see below), whose sum is σ = 22192016. Its totient is φ = 6340572.

The previous prime is 12681127. The next prime is 12681187. The reversal of 12681148 is 84118621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585140 + ... + 1585147.

Almost surely, 212681148 is an apocalyptic number.

It is an amenable number.

12681148 is a deficient number, since it is larger than the sum of its proper divisors (9510868).

12681148 is a wasteful number, since it uses less digits than its factorization.

12681148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170291 (or 3170289 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 12681148 is about 3561.0599545641. The cubic root of 12681148 is about 233.1951553766.

Adding to 12681148 its reverse (84118621), we get a palindrome (96799769).

The spelling of 12681148 in words is "twelve million, six hundred eighty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 3170287 6340574 12681148